BackTracking Visually Explained | Combination Sum Leetcode 39
About this lesson
In this video, we’ll explore the concept of backtracking through a classic problem—LeetCode’s Combination Sum. Starting with a simple tree visualization, we’ll break down the logic step-by-step to understand how backtracking explores possibilities, prunes dead ends, and finds valid solutions. Along the way, we’ll discuss how this technique differs from depth-first search and write clean, efficient Python code to solve the problem. Whether you’re preparing for coding interviews or just love problem-solving, this video will give you a solid understanding of backtracking’s power and elegance. Leetcode Link:- https://leetcode.com/problems/combination-sum/ Animation Code:- https://github.com/ByteQuest0/Animation_codes/blob/main/2025/ Tools used to make the video: Manim and Premiere Pro,. manim link:- https://pypi.org/project/manimgl/
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